Home / 315,044.34-472,282.19-213,876.45

Finding the Fourth Proportional to 315,044.34, 472,282.19 and 213,876.45

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Solution

The fourth proportional to 315,044.34, 472,282.19 and 213,876.45 is: 320,621.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,044.34 : 472,282.19 = 213,876.45 : x
  2. Step 2: Convert to fraction form
    315,044.34/472,282.19 = 213,876.45/x
  3. Step 3: Cross multiply
    315,044.34x = 472,282.19 × 213,876.45
  4. Step 4: Simplify right side
    315,044.34x = 101,010,039,131.14
  5. Step 5: Solve for x
    x = 101,010,039,131.14/315,044.34
  6. Step 6: Final answer
    x = 320,621.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.